生物制药 » 讨论区 » 经验共享 » 【讨论帖】令人头疼的起始原料

采购询价

点击提交代表您同意 《用户服务协议》 《隐私政策》

 
需要登录并加入本群才可以回复和发新贴

标题:【讨论帖】令人头疼的起始原料

jude[使用道具]
四级
Rank: 4


UID 72164
精华 1
积分 599
帖子 754
信誉分 102
可用分 4721
专家分 10
阅读权限 255
注册 2011-9-5
状态 离线
21
 

借此贴请教个问题,起始原料可以赠送吗,本公司和起始原料提供商有其他合作关系,对方做的赠送,是否可以用来申报原料,关键起始原料。谢谢
顶部
okhaha[使用道具]
四级
Rank: 4


UID 77505
精华 0
积分 548
帖子 756
信誉分 100
可用分 4651
专家分 0
阅读权限 255
注册 2011-11-17
状态 离线
22
 
关键起始原料需要详细的生产工艺?
应该只需提供合成路线图及各步所用到的试剂、溶剂或催化剂等信息即可。
详见:cuturl('http://www.dxy.cn/bbs/topic/22914378')
In order to assess the presence of all potential impurities, including regioisomeric and stereoisomeric impurities, toxic impurities, residual solvents and residues of catalysts in the starting material, a brief narrative description of the synthesis including an outline leading to the starting material beginning with simpler molecules with all the reagents, solvents, and intermediates specified and the flow chart of the synthesis should be provided. Potential for the presence of adventitious agents, including viral and bacterial agents, residual proteins and TSE agents in the starting material selected should be discussed.
A more detailed description of the synthetic process should be provided for steps leading from the starting material to the final drug substance. The additional details should include quantities of raw materials, description of equipment, reaction conditions, in-process controls, percent yields, etc.
这个是加拿大的要求,FDA或EMA也是这样的要求,可以找到原文。
......

==============================================================================================

请教版主一个问题,如果用到的关键起始物料为药用级原料药(已获得批准文号),那么这些工艺信息是否需要提供。
顶部
popo520[使用道具]
三级
Rank: 3Rank: 3


UID 103468
精华 0
积分 269
帖子 257
信誉分 100
可用分 2066
专家分 0
阅读权限 255
注册 2013-1-11
状态 离线
23
 
我觉得其实大家都知道该怎么做,只是在纠结怎么少做工作然后又能顺利过审评而已。
顶部
园丁##[使用道具]
超级版主
Rank: 8Rank: 8


UID 74049
精华 0
积分 1981
帖子 3179
信誉分 101
可用分 16786
专家分 10
阅读权限 150
注册 2011-10-4
状态 离线
24
 
Health Canada的问答
Q): What level ofdetail for submission purposes is required on the starting material of an APIprepared by chemical synthesis?
问:化学合成制备的原料药所提交的CTD资料中起始物料的信息到底要详细到什么程度呢?
A): It is acknowledged that ICH Q7A provides a definition for "APIStarting Material", which may be distinct from the concept of"starting material for synthesis" discussed in this Q&A document.These are considered complementary definitions, since Q7A defines the point atwhich GMP requirements apply to the synthetic process in some jurisdictions,while requirements for "starting material for synthesis" defines thestarting point in the synthetic process for an API which should be provided toHealth Canada to permit the evaluation of the safety and quality of the API. Inmany cases, the "starting material for synthesis" may precede the ICH"API Starting Material" by several steps in the synthetic process.The level of details required concerning reaction conditions and controls willincrease as synthetic steps get closer to the final API.
答:大家所公认的ICH Q7A提供了“原料药起始物料”的定义,这个可能要与本问答文件中所讨论的“合成的起始物料”的概念相区别。这可以被认为是补充定义,因为Q7A定义了某些监管机构所要求合成工艺中执行GMP管理的起点,然而,“合成的起始物料”的要求定义了为允许评价原料药的安全性和质量而提交给加拿大卫生部的原料药合成工艺的起点,在多数情况下,“合成的起始物料”在合成工艺中要领先于“原料药起始物料”好几个步骤,反应条件和控制的详细程度随着合成步骤与最终原料药越接近而变得更详细。
In general, the starting material forsynthesis in drug submissions should:
通常,在药物提交的合成的起始物料应:
be a synthetic precursor one or more synthetic steps prior to the final API intermediate,
是在最终原料药中间体前一步或多步合成步骤的合成前体;
be a well characterised, isolated and purified substance with structure fully elucidated,
是一个结构充分确证的良好特性的、分离的且纯化的物质;
have well defined specifications which include one or more specific identity tests, and tests and limits for potency, specified and unspecified impurities and total impurities.
具有明确的质量标准,包括一个或多个特定的鉴别试验、检测和含量限度,特定和非特定杂质以及总杂质。
Acids, bases, salts, esters and similarderivatives of the API, and the racemate of a single enantiomeric API are notconsidered final intermediates.
原料药的酸、碱、盐、酯及类似的衍生物,以及单一对映体原料药的消旋体不能作为最终的中间体。
The selection of a particular compound as thestarting material for synthesis and its specifications should be justified.
用作为合成的起始物料的特定化合物的选择及其质量标准应经过确认。
In order to assess the presence of allpotential impurities, including regioisomeric and stereoisomericimpurities, toxic impurities, residual solvents and residues of catalysts inthe starting material, a brief narrative description of the synthesis includingan outline leading to the starting material beginningwith simpler molecules with all the reagents, solvents, and intermediatesspecified and the flow chart of the synthesis should be provided. Potential forthe presence of adventitious agents, including viral and bacterial agents,residual proteins and TSE agents in the starting material selected should bediscussed.
为了评价起始物料中可能存在的包括几何异构体和立体异构体杂质、毒性杂质、残留溶剂以及残留催化剂的杂质,应提供从更简单的分子至起始物料的包括反应图在内的合成简述,以及所有的试剂、溶剂和特定的中间体,合成的流程图。对所选择的起始物料中存在病毒和细菌、残留蛋白质和TSE等异物的可能性应进行讨论。
A more detailed description of the syntheticprocess should be provided for steps leading from the starting material to thefinal drug substance. The additional details should include quantities of rawmaterials, description of equipment, reaction conditions, in-process controls,percent yields, etc.
从起始物料至最终原料药的合成步骤应提供更为详细的合成工艺描述,应包括原料的用量、设备描述、反应条件、工艺控制和收率等。
编译如下:
问:化学合成制备的原料药所提交的CTD资料中起始物料的信息到底要详细到什么程度呢?
答:大家所公认的ICH Q7A提供了“原料药起始物料”的定义,这个可能要与本问答文件中所讨论的“合成的起始物料”的概念相区别。这可以被认为是补充定义,因为Q7A定义了某些监管机构所要求合成工艺中执行GMP管理的起点,然而,“合成的起始物料”的要求定义了为允许评价原料药的安全性和质量而提交给加拿大卫生部的原料药合成工艺的起点,在多数情况下,“合成的起始物料”在合成工艺中要领先于“原料药起始物料”好几个步骤,反应条件和控制的详细程度随着合成步骤与最终原料药越接近而变得更详细。
通常,在药物提交的合成的起始物料应:
是在最终原料药中间体前一步或多步合成步骤的合成前体;
是一个结构充分确证的良好特性的、分离的且纯化的物质;
具有明确的质量标准,包括一个或多个特定的鉴别试验、检测和含量限度,特定和非特定杂质以及总杂质。
原料药的酸、碱、盐、酯及类似的衍生物,以及单一对映体原料药的消旋体不能作为最终的中间体。
用作为合成的起始物料的特定化合物的选择及其质量标准应经过确认。
为了评价起始物料中可能存在的包括几何异构体和立体异构体杂质、毒性杂质、残留溶剂以及残留催化剂的杂质,应提供从更简单的分子至起始物料的包括反应图在内的合成简述,以及所有的试剂、溶剂和特定的中间体,合成的流程图。对所选择的起始物料中存在病毒和细菌、残留蛋白质和TSE等异物的可能性应进行讨论。
从起始物料至最终原料药的合成步骤应提供更为详细的合成工艺描述,应包括原料的用量、设备描述、反应条件、工艺控制和收率等。
顶部
xiaoxiaoniao[使用道具]
四级
Rank: 4


UID 108878
精华 0
积分 509
帖子 677
信誉分 100
可用分 4049
专家分 0
阅读权限 255
注册 2013-5-15
状态 离线
25
 
最近听CDE培训课,几次学员提及此问题,主要难于索取到详细工艺,但我认为起始物料的工艺价值是对其内在杂质的认知,能提供工艺路线图和对其内控的质量标准,在CDE审评中基本能得到认可的。我是这样理解。
顶部
园丁##[使用道具]
超级版主
Rank: 8Rank: 8


UID 74049
精华 0
积分 1981
帖子 3179
信誉分 101
可用分 16786
专家分 10
阅读权限 150
注册 2011-10-4
状态 离线
26
 

EDQM对于起始物料选择的指导原则:
More and more frequently, applicants propose short synthesis, with complex products proposed as starting materials in the application. This is generally not acceptable and the complex material is considered by the assessors as an intermediate in the synthesis.
Applicants are reminded that the approved starting material is the starting point for GMP and variations, and must be representative of the overall synthetic process and not just a late intermediate resulting in a shortened synthesis. The proposed starting material should be justified. Proposing a complex molecule as starting material may lead to a request for redefinition of the starting material further back in the synthesis.
The policy for definition of Starting Materials for APIs applied at EDQM is the following:
— The proposed starting materials should generally not have a structure that is very close to that of the final substance in relative size and complexity (but will depend on the number of steps to the final active substance).
— Multiple synthesis steps should separate the starting material(s) and the active substance. A synthesis step is a step in the synthesis where covalent bonds are formed or broken. A process consisting of only 1-2 steps is generally not sufficient to ensure full control of the quality of the final substance. Fewer steps may be acceptable in some cases, for example for simple molecules, or when the proposed starting material is the subject of a CEP.
— The full description of the process should cover all the synthetic steps critical for safety (impurities) and/or efficacy; such as steps in which a genotoxic substance is used or formed, step contributing to the overall stereochemistry of the active substance or steps such as biocatalytic transformations.
— Commercial availability is an insufficient justification to accept a starting material. Starting materials produced by custom synthesis and those available commercially are not accepted unless supported by additional criteria as described above.
— It is the combination of the number of chemical synthetic transformation steps carried out under GMP and the control strategy applied to these steps, which provides assurance of quality of the active substance.
— The name and address of manufacturers of starting materials should be stated in the dossier.
— In order to justify the specifications of the starting material information on the manufacture of the starting material should be provided. This should include a flow diagram outlining enough steps of the synthesis and information on the solvents, reagents and catalysts used during its synthesis.
— Any declaration on GMP and/or on willingness to be inspected presented by starting material manufacturers will in effect have no influence on which substance will be accepted as an appropriate starting point for the part of the synthesis since GMP cannot be imposed for the manufacture of a starting material.
— An appropriate control strategy should be proposed to ensure the robustness and consistency of the manufacturing process.
顶部
moonlight[使用道具]
三级
Rank: 3Rank: 3


UID 76228
精华 0
积分 194
帖子 187
信誉分 100
可用分 1611
专家分 0
阅读权限 255
注册 2011-11-2
状态 离线
27
 

起始物料的选择是很麻烦的。厂家想步骤简单,CDE想质量控制。
以上的讨论很有见解,学习了!
顶部
xuuuu[使用道具]
三级
Rank: 3Rank: 3


UID 118128
精华 1
积分 444
帖子 503
信誉分 102
可用分 3386
专家分 10
阅读权限 255
注册 2013-12-10
状态 离线
28
 
想报就弄个假的!因为不是你的,怎么可能是真的!“逼良为娼”的政策!
顶部
ujne[使用道具]
三级
Rank: 3Rank: 3


UID 117905
精华 0
积分 359
帖子 377
信誉分 100
可用分 2711
专家分 0
阅读权限 255
注册 2013-12-7
状态 离线
29
 

实在不行就只能换供应商了啊,重新验证
顶部
xiaoxiaoniao[使用道具]
四级
Rank: 4


UID 108878
精华 0
积分 509
帖子 677
信誉分 100
可用分 4049
专家分 0
阅读权限 255
注册 2013-5-15
状态 离线
30
 

学习了
以前申报时太老实,工艺申报的很长很长很长……
顶部